anisotropic (adj.)youdaoicibaDictYouDict[anisotropic 词源字典]
1854; see an- (1) "not" + isotropic.[anisotropic etymology, anisotropic origin, 英语词源]
anker (n.)youdaoicibaDictYouDict
also anchor, liquid measure in North Sea and Baltic trade, early 14c., from Dutch, related to German Anker, Swedish ankare, Medieval Latin anceria "keg, vat," which is of unknown origin. That of Rotterdam, once used in England, equaled 10 old wine or 8.5 imperial gallons.
ankh (n.)youdaoicibaDictYouDict
tau cross with an oval at the top, Egyptian symbol of life, 1873, from Egyptian ankh, literally "life, soul." Also known as crux ansata.
ankle (n.)youdaoicibaDictYouDict
Old English ancleow "ankle," from PIE root *ang-/*ank- "to bend" (see angle (n.)). The modern form seems to have been influenced by Old Norse ökkla or Old Frisian ankel, which are immediately from the Proto-Germanic form of the root (cognates: Middle High German anke "joint," German Enke "ankle"); the second element in the Old English, Old Norse and Old Frisian forms perhaps suggests claw (compare Dutch anklaauw), or it may be from influence of cneow "knee," or it may be diminutive suffix -el. Middle English writers distinguished inner ankle projection (hel of the ancle) from the outer (utter or utward).
anklet (n.)youdaoicibaDictYouDict
"ring for an ankle," 1810, from ankle, with diminutive suffix -let, after bracelet, etc.
ankylosaurus (n.)youdaoicibaDictYouDict
Cretaceous armored dinosaur, 1907, Modern Latin, from Greek ankylos "crooked" (see angle (n.)) + -saurus.
ankylosis (n.)youdaoicibaDictYouDict
stiffening of joints after injury or surgery, alternative (and more etymological) spelling of anchylosis (q.v.).
anlage (n.)youdaoicibaDictYouDict
"basis of a later development" (plural anlagen), 1892, from German anlage "foundation, basis," from anlagen (v.) "to establish," from an "on" + legen "to lay" (see lay (v.)).
AnnyoudaoicibaDictYouDict
fem. proper name, alternative form of Anna, from Latin Anna, from Greek, from Hebrew Hannah (see Hannah). In U.S. black slang, "white woman," also "a black woman who is considered to be acting 'too white;' " also Miss Ann. She is the spouse of Mr. Charlie.
AnnayoudaoicibaDictYouDict
fem. proper name, from Latin Anna, from Greek Anna, from Hebrew Hannah, literally "grace, graciousness" (see Hannah).
annal (n.)youdaoicibaDictYouDict
rare singular of annals (q.v.).
annalist (n.)youdaoicibaDictYouDict
"one who keeps a chronicle of events by year," 1610s, from French analiste; see annals + -ist.
annalize (v.)youdaoicibaDictYouDict
"record in annals," 1610s, from annals + -ize. Related: Annalized; annalizing.
annals (n.)youdaoicibaDictYouDict
1560s, from Latin annales libri "chronicles," literally "yearlies, yearly books," noun use of plural of annalis "pertaining to a year," from annus "year" (see annual (adj.)).
AnnamyoudaoicibaDictYouDict
old alternative name for Vietnam, from Chinese, literally "pacified south," the name given to the old nation of Nam Viet by the Chinese after they conquered it 111 B.C.E. From an "peace" + nan "south." It was discarded upon restoration of Viet independence in 939 C.E., but it stuck in Western geographies and was reapplied to the region c. 1790 by the French.
AnneyoudaoicibaDictYouDict
alternative form of the fem. proper name Anna (q.v.). In Christian tradition, the name of the mother of the Virgin Mary.
anneal (v.)youdaoicibaDictYouDict
Old English onælan "to set on fire, kindle," from on- "on" + ælan "to burn, bake," from Proto-Germanic *ailan, "probably" [Watkins] from PIE *ai- (2) "to burn" (see ash (n.1)); related to Old English æled "fire, firebrand," Old Norse eldr, Danish ild "fire." Related: Annealed; annealing.
annelid (n.)youdaoicibaDictYouDict
"segmented worm," 1834, from French annélide, source of the phylum name Annelida, coined in Modern Latin 1801 by French naturalist J.B.P. Lamarck (1744-1829), from annelés "ringed ones" (from Latin anulus "little ring," a diminutive of anus; see anus) + Greek eidos "form, shape" (see -oid).
annex (v.)youdaoicibaDictYouDict
late 14c., "to connect with," from Old French annexer "to join" (13c.), from Medieval Latin annexare, frequentative of Latin annecetere "to bind to," from ad- "to" (see ad-) + nectere "to tie, bind" (see nexus). Almost always meaning "to join in a subordinate capacity." Of nations or territories, c. 1400. Related: Annexed; annexing.
annex (n.)youdaoicibaDictYouDict
1540s, "an adjunct, accessory," from French annexe, from annexer (see annex (v.)). Meaning "supplementary building" is from 1861.